单项选择题

The disease "beriberi"______.

A．kills a large number of western people
B．is a vitamin deficiency disease
C．is transmitted by diseased rice
D．can be caught from diseased chickens
<上一题 目录 下一题>
热门 试题

单项选择题
The chickens Eijkman noticed in the hospital yard______.
A．couldn't digest the huskless rice
B．proved beriberi is transmitted by germs
C．were later cooked for the patients' food
D．were suffering from vitamin deficiency
单项选择题
Fresh fruit and vegetables______.
A．contain more vitamin C than any other food
B．decrease our resistance to colds
C．contain every kind of vitamin
D．increase our susceptibility to influenza
相关试题